dmc I know they are rare though an upcoming project will need one. The usual suspects, Voldat and Berry's, have been tried without luck. Locate in Melbourne though options are available for anywhere around Oz. Will need a clutch too, though that is a little easier to source. All leads appreciated.
Ghettobird I can highly recommend http://ttvracing.com They sent my billet lightweight flywheel out and I received it in 3 days High quality precision work that you can trust